I have a bad threesome dating

I and my boyfriend are open-minded. One day, we talked about each other's sexual fantasy. It turns out that we have a  common fantasy that is threesome dating. So, we decided to find a threesome dating partner and have a wonderful threesome dating. Friends are not our candidates. We download a tinder for threesomes dating app, and invited a hot girl. While I thought we would have a great three way. That night was terrible.